EPITwitter :

A decentralized version of Twitter based en ethereum smart contracts

Team members:

• Sergio Kevin MORALES VILLARROEL (https://github.com/sergioKmoralesV)
• Isaac GUILLERMO GONZALES VIZCARRA (https://github.com/Isaacgv)
• Anthony SIAMPIRINGUE (https://github.com/Anthony-Si)

Summary:

The main goal of the project was to have a twitter clone based on Ethereum's smart contracts architecture.
The creation|modification|deletion of tweets are stored in the blockchain.
The project has been divided in 2 parts:

• The client, which has been implemented in React.js, is in charge of rendering the UI and querying the API endpoints.
• The server, which contains the Solidity contract, is based on hardhat. The smart contract is hosted on alchemy as an API.

Prerequisites:

In order to fully run the application, we need the following elements:

• A Metamask wallet with funds (you can charge here for Rinkeby,for Goerli and here for Kovan) in the given test network.
• An Alchemy account and containing a configured API which contains the server code.

Tools used:

• Hardhat, development environment to compile, deploy and test the smart contracts
• Chai/Mocha, packages to set unit tests on client and server functionalities
• Eslint, open source project for linting Javascript code
• Prettier, to format code
• Solhint, open source project for linting Solidity code
• Openzeppelin/contracts, libraries allowing to build ready to use smarts contracts based on Ethereum or other blockchains

Infrastructure:

Configurations and commands to run the client locally and host the server on alchemy

Server part:

1. To define your alchemy app address that will be hosting the server, create a .env file from .env.example
2. Command line: npx hardhat run scripts/deploy.js --network rinkeby

Client part:

1. Command line: npm start
2. Connect to http://localhost:3000